Espresso machine



FIG. 1 is a front perspective view of an espresso machine showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The fragmentary showing of the electrical cord in FIGS. 3-7 is for ease of illustration. 

The ornamental design for an espresso machine, as shown and described. 